| Name | Membership No. | Grade | Branch |
|---|---|---|---|
| Rasheed Adekunle Hassan | SE 0823 | Member | Lagos |
| Olujimi Nunayon Hotonu | SE 0294 | Fellow | Lagos |
| Olawale Oludare Ibiyemi | SE 0598 | Member | Lagos |
| Taofiq Lasun Ibraheem | SE 0677 | Member | Lagos |
| Aliyu Mohammed Ibrahim | SE 0827 | Member | Abuja |
| Garba Hamza Ibrahim | SE 0789 | Member | Abuja |
| R. O. Ibrahim | SE 0251 | Fellow | Lagos |
| Emmanuel Afam Idoko | SE 0798 | Member | Lagos |
| Alex O Idolor | SE 0497 | Fellow | Abuja |
| Ademola Mathew Idowu | SE 0639 | Member | Lagos |
| Charles Olatunji Idowu | SE 0009 | Fellow | Lagos |
| R. A.A. Idowu | SE 0257 | Fellow | Ibadan |
| Samuel Arohunfegbe Idowu | SE 0888 | Member | – |
| Marcel Ifejiofor | SE 0799 | Member | Awka |
| Jacob Adebisi Ifelaja | SE 0163 | Fellow | Lagos |
| Patrick . O. Emuobanuvie Igba | SE 0688 | Member | Lagos |
| Rowland Igbi | SE 0560 | Member | Portharcourt |
| Peter Osarodion Igbinijesu | SE 0578 | Fellow | Abuja |
| John Bully Igbre | SE 0553 | Member | Benin |
| Sarah Bosede Ighologba | SE 0655 | Member | Lagos |
| Vitus Okey Ihejirika | SE 0740 | Member | Abuja |
| Chukwu Harolo Ihemaguba | SE 0371 | Member | Owerri |
| Ignatius Agaefobili Ikegwuonu | SE 0100 | Fellow | Enugu |
| Ferdinand Ikeji | SE 0791 | Member | – |
| Godfrey Ikoro Ikenna | SE 0889 | Member | – |